11812078615415 has 16 divisors (see below), whose sum is σ = 15325656173856. Its totient is φ = 8688013680000.

The previous prime is 11812078615411. The next prime is 11812078615459. The reversal of 11812078615415 is 51451687021811.

It is not a de Polignac number, because 11812078615415 - 2² = 11812078615411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11812078615411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361984256 + ... + 362016885.

It is an arithmetic number, because the mean of its divisors is an integer number (957853510866).

Almost surely, 2^{11812078615415} is an apocalyptic number.

11812078615415 is a deficient number, since it is larger than the sum of its proper divisors (3513577558441).

11812078615415 is a wasteful number, since it uses less digits than its factorization.

11812078615415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724001410.

The product of its (nonzero) digits is 537600, while the sum is 50.

The spelling of 11812078615415 in words is "eleven trillion, eight hundred twelve billion, seventy-eight million, six hundred fifteen thousand, four hundred fifteen".